[hoss2006]

Now that is cool! Is that the free version of alibre you used to create that pdf? That is awesome you can interact with the part in the adobe reader!

Rick

It works during the 1st 30 days, we'll see after that.
Hoss

[hoss2006]

Started posting some videos on how I turn the ballscrews for the X2 conversion.
The first pair are the intro and the Z axis screw.
I had to split the original video because it was too long for youtube.
Part 1 is available in High Quality and part 2 is not, go figure.
Same exact format.
Have to edit the Y axis screw turning, about 15 minutes worth to shave down to under 10.
I'll get to the threading tonight after the game.#6

[ame="http://www.youtube.com/watch?v=JZN8flCiu2g&feature=channel_page"]Ballscrew Turning Z Axis Part 1[/ame]

[ame="http://www.youtube.com/watch?v=FqzZTS1Dupo&feature=channel_page"]Ballscrew Turning Z Axis Part 2[/ame]

[hoss2006]

The Y Axis ballscrew turning videos are up.
The threading video will have to wait till the next time,
the camera crapped out during filming of this order.
2 more orders to take care of though next week.
#6 baby:banana:

[ame="http://www.youtube.com/watch?v=B2gH6BywbvA&feature=channel_page"]Ballscrew Turning Y Axis Part 1[/ame]

[ame="http://www.youtube.com/watch?v=fHdpWSUD-2s&feature=channel_page"]Ballscrew Turning Y Axis Part 2[/ame]

[CROSSHATCH]

Hoss, great videos. Watch two last night and the other two just now.

I really like that Lathe and have looked into it. After the Lathe, tooling, how much did yours come out too?

Would ever consider CNC'ing? It seems like it would be much quicker and efficient as CNC, but the manual lathe is always cool.


What are your thoughts?


-Jason

[ataxy]

one of the advantage out of cnc'ing those lathe is that the motor does not drive the feed anymore so the whole power of the motor goes to the spindle

[hoss2006]

Bought that lathe with CNC in mind, one day.
The lathe was $995 but I already had the tooling for years.
The 10x22 was hard to get ahold of but worth the wait on backorder.
Hoss

[CROSSHATCH]

Very True Hoss, it looks like fantastic Lathe. I am really interested in Grizzlys lathe!

Please more videos

-Jason

[hoss2006]

I'll get a threading video made soon, I have 2 more orders of ballscrews to take care of soon.
There is another option to threading by using a die and a jig that works pretty well too
so i'll show both.
Hoss

[CROSSHATCH]

Please do! Can't wait to watch them Super cool Hoss! Post soon, i'll get to watch them on my day off tomorrow

-Jason

[CROSSHATCH]

Better get those vids up later

-Jason

[hoss2006]

Sorry, won't even have the stock for the new orders for a couple days.
maybe this weekend for new vids.
Hoss

[CROSSHATCH]

Ah shucks! Alright alright

-Jason

[hoss2006]

Oops, no threading video yet.
But have you calibrated Mach 3 yet?
With ballscrew lead errors or stepper/driver inaccuracies,
it's important to calibrate your machine so that Mach 3 actually moves an axis what it should.
We all know the formulas used to calculate Steps per for Motor Tuning.
motor steps/rev / microstepping X screw tpi = Steps Per
or
motor steps/rev / microstepping / screw pitch = Steps Per
Mine for example 200 / (1/2) /.200 = 2000 Steps Per inch
.0005 per step resolution

I checked a parallel with an indicator and to make sure the X axis DRO gave the actually length. (the Y was worse)
Guess what, no cigar. it was off .0015 in 6.0 inches.
Readjusted the Steps per by .5 and now it's within .0003.
That's less than the resolution for 1 step and i'll change back to 1/8 microstepping for better accuracy later.
Hoss

[ame="http://www.youtube.com/watch?v=OTHdgk12EcI"]Mach 3 Steps Calibration[/ame]

[CROSSHATCH]

Good vid.

Lol "what do you expect from the Chinese", good vid!

Those steppers sound so crunchy!

-Jason

[hoss2006]

Those steppers sound so crunchy!

-Jason

Thats the MPG, it can make music depending on how fast you crank the wheel.

[CROSSHATCH]

Oh, none the less, good video Hoss.

-Jason

[BobWarfield]

Gonna have to get a monkey to go with that organ grinder, eh Hoss? LOL

Was bored today so thought I'd try your procedure on my IH mill. Worked out very nicely and didn't take but maybe an hour:

http://www.cnccookbook.com/CCMillCNCHome.html

Cheers,

BW

[hoss2006]

Nice writeup Bob, nice clear pics.
I forgot to take one lousy pic.
I took some video of the backlash checks at the same time.
Made it a separate video to keep the time down.
This just shows how to check it and how backlash comp is verified.
Hoss

[ame="http://www.youtube.com/watch?v=buXHZ_McbOY"]Verifying Mach 3 Backlash Comp[/ame]

[rc-monster mike]

Very cool, and simple technique for calibration, Hoss. One thing that may be considered, though - if the z axis travel isn't perfectly perpendicular to the table, the measurement may be slightly off when you jog up to engage the 2nd block. Likewise, if the table isn't perfectly flat, the 2nd block may be "tilted" ever so slightly, which would also result in an error. I suppose anyone calibrating their lead screw to this level may already have dealt with the above issues, but just food for thought.

[hoss2006]

Yeah, this assumes that you already keep the mill trammed, hopefully.
Hoss